Vertical Interval Time Code is the most popular method for inserting and reading time codes on a videotape or disk. The time code is ins erted in the vertical interval (the screen blanking period) of the video signal, where it is not apparent on the screen, and a time code reader easily retrieves it. The system consists of a time code generator to insert the information, and a time code reader to retrieve it. In most cases, both units - the generator and reader - are built in to one machine. The VITC system is very reliable, as each and every frame of the video signal has its individual time code and mark.
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